Daktronics Pro Series Operations and Maintenance Manual - Manual (Page 106)

MAINTENANCE 99
• Using a low to medium pressure air stream, gently blow
any dirt and dust bunnies from the ventilation holes from both
sides of the drive inverter.
Note: Safety glasses should be worn
during this procedure.
• Re-install the cover and you are done with this
maintenance portion of the Vortek hoist.
• Last thing to check is the attachment connections for the
hoist to the structural steel.
These two 9/16" hex head bolts will need to be checked
for torque values of 17-20ft/lb.
Check both sets of clamps.
Check the nuts on the backbone
stiffeners for tightness.